Tamiya 40505 18T Aluminium Pinion Gear - Precision Tuning Part  [40505]

Tamiya 40505 - Aluminum Pinion Gear (18T)
Price:
£5.10
Brand:
Tamiya
Model:
40505
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Fine Tune Your RC with the Tamiya 40505 Pinion

The Tamiya 40505 Aluminum Pinion Gear helps sharpen throttle response by lowering rotational inertia on the motor shaft. With an 18-tooth aluminium construction, it aims to maintain reliable engagement while minimising drivetrain stress.

Aluminium Pinion Advantages Explained

Aluminium pinions reduce weight at the motor end, which can improve acceleration and responsiveness. The Tamiya 40505 offers consistent tooth geometry for smoother power transfer and sensible longevity when installed correctly.

Installation and Suitability

Compatible with a broad selection of 1/10 scale vehicles, this pinion fits common motor mounts. Ensure correct shaft fit and mesh clearance when installing to prevent premature wear and to keep noise levels down.

Yes, when paired with the right spur and motor it can deliver reliable, repeatable gear engagement suitable for track sessions, provided gear mesh and maintenance are kept up.
Light polishing is fine for cosmetic purposes, but avoid removing material from tooth profiles; any treatment should not alter tooth shape or fitment on the shaft.
After fitting, rotate the drivetrain by hand to inspect for binding, then test at low speed to listen for noisy mesh. Recheck after a short run and adjust if any tightening or spacing is required.

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